Wind scoop and screen for port-holes



H. H. AHERN.

wmo SCOOP AND SCREEN FOR PORT HOLES.

APPLICATION FILED OCT. 13, I919. 1,330,569. Patented Feb. 10,1920.

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ATTORNEYS UNITED STATES PATENT OFFICE.

HARRY AHERN, OI NEWPORT NEWS, VIRGINIA.

WIND SCOOP AND SCREEN FOR PORT-HOLES.

Application filed flctdber 13, 1919.

relation both to the port hole and to the wind scoop.

In United States Letters Patent No. 1,256,281, granted to "me February 19th, 1918, there is disclosed an invention in port hole wind scoops and screens which I have found in practice to give most satisfactory and eiiici'ent results.

My present invention, however, while gen erally embodying the salient and valuahl'e features of my patented aforesaid invention, has for its object means for reducing the costof manufacture and for "facilitating the application and removal of the screen and its adjuncts from the port hole, and as suring its accurate retention when in place by the utilization of certain novel features, which are represented in the accompanying drawings which disclose a preferred embodiment of my construction as hereinafter described.

My invention also consists of a novel construction of' fl'at rings having a screen, or wire mesh ciampe'd at its outer periphery between said rings, the latter being :provided with oppositely located openings and resilient apertured washers clamped in said openings, whereby the screen and its adjuncts can'be supported in a novel and effective manner.

For the purpose of illustrating my invention, I have shown in the accompanying drawings forms thereof which are at present preferred'hy me, since'ithey will give in practice satisfactory and reliable results. It is to be understood that the various instrumentalitiesof which my invention con- Figure 1 represents a perspective view of Specification of Letters Patent.

Patented Feb. 10,1920.

Serial No. 330,442.

a screen and its adjuncts embodying a preferred form of my invention, in detached position.

Fig. 2 represents a fragmentary outside elevation of the upper portion of the screen represented in Fig. 1, the view particularly illustrating one of the rubber washers in normal position.

Fig. 3 represents a fragmentary, central, sectional elevation on the line 33 of Fig. 1.

Fig. 4 represents one of the pointed and tapered stems in its mounted position upon its stem-carrying plate and sleeve.

Fig. 5 represents the stem-carrying plate shown in Fig. 4c, the view being taken from the right-hand of Fig. 4. Fig. '6 represents a perspective view of a port hole frame and a portion of my wind scoop, the view also illustrating the screw hars, screw handle and the tapering points of the stems. 7 represents a fragmentary side elevation of one of the ends of the semi-circular ring. Fig. 8 represents a rpilan of the end of'the ring of Fig. 7.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings 1 designates a port hole frame of the usual character, and 2 a part of a wind scoop of the general character of that covered by any patent. above referred to.

3 'designatesa semi-circularring to which the longitud nal ends of the canvas of the wind scoop are in any preferred manner connected, as, for instance, by the means disclosed in my patent.

As a means for effecting the attachment of this ring?) to the frame 1 of the port hole. I employ in connection with the right and the left-hand screw extension bars 4 and 5 and their controlling screw handle 6, and at the outer end of each bar, a'stem carrying plate 7 formed with an internal or basal collar 8, which is socketed at 9 to fit over the end of a screw bar and to 'be locked thereto by a screw 1 0. .N'Gfll' the upper end of each steincarrylng plate which'is preferably fiat, I form a hole 11 through which is passed one of the stems or rods 12, the outer end of which is pref-- erably tapered to form a tapering point 13, for a purpose hereinafter explained.

14 designates the upper carrying rod of the U-shaped frame which serves as the support for the canvas of my wind scoop, which rod at its order end passes into a sleeve 15 and is secured thereto by a rivet 16, or otherwise as convenience of n'ianufacturc may dictate.

This sleeve 15 receives also within it the stem or rod 12 already referred to, and constitutes externally a surface over which the canvas or fabric 2 of my wind scoop may be lapped and to which it may be secured.

The ends of the semi-circular ring 3, which I have designated as 17, are slotted at 18, as best shown in Figs. 7 and 8, and through these slots pass the ends of the stemcarrying plates 7, the outer or terminal ends 19 of which are engaged in notches 20 in the port hole frame, as best seen in-Fig. 3.

My screen in my present construction is composed of a wire mesh 21 of'any preferred character, is circular in outline and held in place between an outer circular clamping plate or flat ring 22 and an inner circular clamping plate or flat ring 23, secured together by screws or kindred fastenings 2 1.

The outer clamping plate 22 is preferably formed with flanges 25, conveniently 0f inwardly extending, semi-circular form, and best illustrated in Figs. 1 and 2.

These flanges, which, of course, may be dispensed with by making the outer clamping plate 22 of greater inward depth, are placed diametrically of each other and in a line parallel with the axis of the screw bars 45 and screw handle 6, so that there is one flange at the top and the other at the bottom of the screen as an entirety.

Each of these flanges is formed with a preferably circular opening 26 through which is adapted to pass the preferably tapering point 13 of a stem or rod 12; and between the outer and the inner clamping plates 22 and 23 and behind the flanges is clamped a washer 27 preferably of rubber or other elastic or compressible material, formed with a small hole or aperture 28 through it, one of which washers in the assemblage of the parts registers in alinement with the preferably tapering point 13 of one of the stems or rods 12.

29 designates a pull ring or similar handling device, conveniently secured by a clip 30, in turn secured to the flange of the clamping plate by a screw 31 or other preferred means of attachment.

As there are two of these pull rings, it will be readily understood that they serve to facilitate the manipulation or handling the screen to place it in position or to pull it as an entirety off its position of attachment to the port hole frame upon the preferably tapered points 13 of the stems of rods 12, each of which, as illustrated as to one in Fig. 3. passes through a hole in a washer, and by reason of its preferably tapering form causes the radial spreading of a washer with reference to its aperture,

so that the aperture rims or edges of the washer are forced outwardly against the preferably tapering surface of the stem or rod 12, as best illustrated as to one in Fig. 3.

This means of attachment and removal of the screen with relation to the port hole is very simple and inexpensive and easy of construction, it being the fact that in practice in order to secure the screen in position, all that it is necessary to do is to force the washers over the points of the stems, the result being a retention of the screen by the contractile action, so to speak, of washers in their aperture expanded condition, or in other words by the compression of the substance of the washers against the outer surfaces of the stem or rod.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a device of the character stated, a pair of rings, supporting devices therefor having pointed ends, a screen having its peripheral outer edge secured between said rings, oppositely located alining openings in said rings, and a resilient washer bridging each of said oppositely located openings and adapted to engage said pointed ends.

2. In a device of the character stated, a pair of flat rings,- a screen having its peripheral outer edge secured between said rings, diametrically opposite alining openings in said rings, a resilient apertured washer secured in each of said oppositely located openings, and manually grasped devices secured to the exterior-of said rings for manipulating the latter.

3. In a device of the class described, in

combination with a port-hole frame proremovable screen provided with a corresponding plurality of washers adapted to bedforced upon the pointed ends of said r0 s.

5. In a device of the class described,in combination with a port-hole frame,a wind-scoop connected with, and provided with a plurality of rods proiecting beyond, said frame and a removable screen provided with a corresponding plurality of apertured washers of elastic adapted to be slipped over the endsof the rods to secure the screen in place.

6. In a device of the class described, the following elements in combination :-a porthole frame.a wind-scoop connected with said frame by a plurality of rods projecting material beyond it, and aremovable screen provided with a plurality of apertured washers alining with said rods and the apertures of which are adapted to be forced over said rods so as to retain the screen in position.

7. In a device of the class described,in combination with a port-hole frame provided with a plurality of projecting rods,- a removable screen formed of two plates between which are clamped the mesh and also a plurality of apertured washers alining with said rods and the apertures of which are adapted to be forced over said rods.

8. In a device of the class described,in combination with a port-hole frame provided with a plurality of projecting rods, a removable screen formed of two plates between which are clamped the mesh and also a plurality of apertured washers alining with said rods and the apertures of which are adapted to be forced over said rods,-and means connected with the screen to apply or remove it from the port hole frame.

9. In a device of the class described, the following elements in combination :a porthole frame,a wind-scoop,a semi-circular ring within said frame and connected therewith by extension screw bars provided with a screw handle operating to separate or draw them together and provided also with stem-carrying plates through which extend carrying-rods forming a part of the framing of the wind-scoop,a wlnd scoop provided with carrying rods which extend beyond both the ring and the port-hole frame,- and a screen provided with a plurality of apertured washers alining with said rods and the apertures of which are adapted to be forced over said rods so as to retain the screen in position.

10. In a device of the class described, the following elements in combination,-a port-hole frame,a wind-scoop,a semicircular ring within said frame and connected therewith by extension screw bars provided with a screw handle operating to separate or draw them together and provided also with stem-carrying plates through which extend carrying rods forming a part of the framing of the windscoop,a wind-scoop provided with carrying rods which extend beyond both the ring and the port-hole frame,and a screen formed of circular plates between which are clamped a plurality of apertured washers alining with said rods.

HARRY H. AHERN.

' Witnesses:

C. W. GWALTNEY, C. T. LAWSON. 

